<?php
    /**
     * Created by PhpStorm.
     * User: jackhhy
     * Date: 2019/7/1-14:03
     * Link: https://gitee.com/luckygyl/luckyAdmin
     * FileName: WxpayService.php
     * Keys: ctrl+alt+L/ctrl+s(代码格式化) ctrl+J(代码提示) ctrl+R(替换)ALT+INSERT(生成代码(如GET,SET方法,构造函数等) , 光标在类中才生效)
     * CTRL+ALT+O (优化导入的类和包 需要配置) SHIFT+F2(高亮错误或警告快速定位错误)
     * CTRL+SHIFT+Z(代码向前) CTRL+SHIFT+/ (块状注释) ctrl+shift+enter(智能完善代码 如if())
     *
     **************************************************************
     *                                                            *
     *   .=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-.       *
     *    |                     ______                     |      *
     *    |                  .-"      "-.                  |      *
     *    |                 /            \                 |      *
     *    |     _          |              |          _     |      *
     *    |    ( \         |,  .-.  .-.  ,|         / )    |      *
     *    |     > "=._     | )(__/  \__)( |     _.=" <     |      *
     *    |    (_/"=._"=._ |/     /\     \| _.="_.="\_)    |      *
     *    |           "=._"(_     ^^     _)"_.="           |      *
     *    |               "=\__|IIIIII|__/="               |      *
     *    |              _.="| \IIIIII/ |"=._              |      *
     *    |    _     _.="_.="\          /"=._"=._     _    |      *
     *    |   ( \_.="_.="     `--------`     "=._"=._/ )   |      *
     *    |    > _.="                            "=._ <    |      *
     *    |   (_/                                    \_)   |      *
     *    |                                                |      *
     *    '-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-='      *
     *                                                            *
     *                    JUST FIND YOUR BUG !                    *
     **************************************************************
     * 微信扫码支付
     */

    /**
     * 调用实例
     * $data['total_amount'] = $payAmount;//价格
    $data['order_id'] = time().$themeEnlist['enlist_card'].mt_rand(10,99);//订单  不能超过32为
    ThemeEnlistModel::edit($data,$idB);
    $mchid = SystemConfig::getValue('pay_weixin_mchid');          //微信支付商户号 PartnerID 通过微信支付商户资料审核后邮件发送
    $appid = SystemConfig::getValue('pay_weixin_appid');  //公众号APPID 通过微信支付商户资料审核后邮件发送
    $apiKey = SystemConfig::getValue('pay_weixin_key');   //https://pay.weixin.qq.com 帐户设置-安全设置-API安全-API密钥-设置API密钥
    $wxPay = new WxpayService($mchid,$appid,$apiKey);//实例化微信扫码类
    $outTradeNo = $data['order_id'];     //你自己的商品订单号
    $notifyUrl = SystemConfig::getValue('site_url').Url::build('index/Themeenlist/wapay_success_notify');     //付款成功后的回调地址(不要有问号)
    $payTime = time();      //付款时间
    $arr = $wxPay->createJsBizPackage($payAmount,$outTradeNo,$orderName,$notifyUrl,$payTime);//创建成功会微信返回的数据

    $url = 'http://pan.baidu.com/share/qrcode?w=104&h=100&url='.$arr['code_url'];//生成二维码  http://pan.baidu.com/share/qrcode 百度在线生成二维码链家
     */
    namespace service;

    class WxpayService
    {
        protected $mchid;
        protected $appid;
        protected $apiKey;
        public function __construct($mchid, $appid, $key)
        {
            $this->mchid = $mchid;
            $this->appid = $appid;
            $this->apiKey = $key;
        }
        /**
         * 发起订单
         * @param float $totalFee 收款总费用 单位元
         * @param string $outTradeNo 唯一的订单号
         * @param string $orderName 订单名称
         * @param string $notifyUrl 支付结果通知url 不要有问号
         * @param string $timestamp 订单发起时间
         * @return array
         */
        public function createJsBizPackage($totalFee, $outTradeNo, $orderName, $notifyUrl, $timestamp)
        {
            $config = array(
                'mch_id' => $this->mchid,
                'appid' => $this->appid,
                'key' => $this->apiKey,
            );
            //$orderName = iconv('GBK','UTF-8',$orderName);
            $unified = array(
                'appid' => $config['appid'],
                'attach' => 'pay',             //商家数据包，原样返回，如果填写中文，请注意转换为utf-8
                'body' => $orderName,
                'mch_id' => $config['mch_id'],
                'nonce_str' => self::createNonceStr(),
                'notify_url' => $notifyUrl,
                'out_trade_no' => $outTradeNo,
                'spbill_create_ip' => '127.0.0.1',
                'total_fee' => intval($totalFee * 100),       //单位 转为分
                'trade_type' => 'NATIVE',
            );
            $unified['sign'] = self::getSign($unified, $config['key']);
            $responseXml = self::curlPost('https://api.mch.weixin.qq.com/pay/unifiedorder', self::arrayToXml($unified));
            $unifiedOrder = simplexml_load_string($responseXml, 'SimpleXMLElement', LIBXML_NOCDATA);
            if ($unifiedOrder === false) {
                die('parse xml error');
            }
            if ($unifiedOrder->return_code != 'SUCCESS') {
                die($unifiedOrder->return_msg);
            }
            if ($unifiedOrder->result_code != 'SUCCESS') {
                die($unifiedOrder->err_code);
            }
            $codeUrl = (array)($unifiedOrder->code_url);
            if(!$codeUrl[0]) exit('get code_url error');
            $arr = array(
                "appId" => $config['appid'],
                "timeStamp" => $timestamp,
                "nonceStr" => self::createNonceStr(),
                "package" => "prepay_id=" . $unifiedOrder->prepay_id,
                "signType" => 'MD5',
                "code_url" => $codeUrl[0],
            );
            $arr['paySign'] = self::getSign($arr, $config['key']);
            return $arr;
        }


        /**
         * @return \SimpleXMLElement
         * @author: Jackhhy <jackhhy520@qq.com>
         * @name: notify
         * @describe:回调通知
         */
        public function notify()
        {
            $config = array(
                'mch_id' => $this->mchid,
                'appid' => $this->appid,
                'key' => $this->apiKey,
            );
            $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
            $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
            if ($postObj === false) {
                die('parse xml error');
            }
            if ($postObj->return_code != 'SUCCESS') {
                die($postObj->return_msg);
            }
            if ($postObj->result_code != 'SUCCESS') {
                die($postObj->err_code);
            }
            $arr = (array)$postObj;
            unset($arr['sign']);
            if (self::getSign($arr, $config['key']) == $postObj->sign) {
                echo '<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';
                return $postObj;
            }
        }




        /**
         * curl get
         *
         * @param string $url
         * @param array $options
         * @return mixed
         */
        public static function curlGet($url = '', $options = array())
        {
            $ch = curl_init($url);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_TIMEOUT, 30);
            if (!empty($options)) {
                curl_setopt_array($ch, $options);
            }
            //https请求 不验证证书和host
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
            $data = curl_exec($ch);
            curl_close($ch);
            return $data;
        }


        /**
         * @param string $url
         * @param string $postData
         * @param array $options
         * @return bool|string
         * @author: Jackhhy <jackhhy520@qq.com>
         * @name: curlPost
         * @describe:post
         */
        public static function curlPost($url = '', $postData = '', $options = array())
        {
            if (is_array($postData)) {
                $postData = http_build_query($postData);
            }
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_POST, 1);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
            curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置cURL允许执行的最长秒数
            if (!empty($options)) {
                curl_setopt_array($ch, $options);
            }
            //https请求 不验证证书和host
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
            $data = curl_exec($ch);
            curl_close($ch);
            return $data;
        }



        /**
         * @param int $length
         * @return string
         * @author: Jackhhy <jackhhy520@qq.com>
         * @name: createNonceStr
         * @describe:生成
         */
        public static function createNonceStr($length = 16)
        {
            $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
            $str = '';
            for ($i = 0; $i < $length; $i++) {
                $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
            }
            return $str;
        }


        /**
         * @param $arr
         * @return string
         * @author: Jackhhy <jackhhy520@qq.com>
         * @name: arrayToXml
         * @describe:数组转xml
         */
        public static function arrayToXml($arr)
        {
            $xml = "<xml>";
            foreach ($arr as $key => $val) {
                if (is_numeric($val)) {
                    $xml .= "<" . $key . ">" . $val . "</" . $key . ">";
                } else
                    $xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
            }
            $xml .= "</xml>";
            return $xml;
        }




        /**
         * 获取签名
         */
        public static function getSign($params, $key)
        {
            ksort($params, SORT_STRING);
            $unSignParaString = self::formatQueryParaMap($params, false);
            $signStr = strtoupper(md5($unSignParaString . "&key=" . $key));
            return $signStr;
        }



        /**
         * @param $paraMap
         * @param bool $urlEncode
         * @return bool|string
         * @author: Jackhhy <jackhhy520@qq.com>
         * @name: formatQueryParaMap
         * @describe:格式化
         */
        protected static function formatQueryParaMap($paraMap, $urlEncode = false)
        {
            $buff = "";
            ksort($paraMap);
            foreach ($paraMap as $k => $v) {
                if (null != $v && "null" != $v) {
                    if ($urlEncode) {
                        $v = urlencode($v);
                    }
                    $buff .= $k . "=" . $v . "&";
                }
            }
            $reqPar = '';
            if (strlen($buff) > 0) {
                $reqPar = substr($buff, 0, strlen($buff) - 1);
            }
            return $reqPar;
        }



    }